<template>
    <div>
        <Category :scene="scene"></Category>
        <el-card style="margin: 10px 0;">
            <div v-show="scene==0">
                <el-button type="primary" size="default" @click="addAttr" icon="Plus"
                :disabled="categoryStore.c3Id ? false : true">添加</el-button>
            <el-table border style="margin: 10px 0;" :data="attrArr">
                <el-table-column width="80px" label="序号" type="index" align="center">
                </el-table-column>
                <el-table-column width="120px" label="属性名称" prop="attrName">
                </el-table-column>
                <el-table-column label="属性值名称">
                    <template #="{row,$index}">
                        <el-tag style="margin: 5px;" v-for="(item,index) in row.attrValueList" :key="item.id">{{ item.valueName }}}</el-tag>
                    </template>
                </el-table-column>
                <el-table-column width="120px" label="操作">
                    <template #="{row,$index}">
                        <el-button type="primary" size="small" icon="Edit" @click="updateAttr(row)"></el-button>
                        
                        <el-popconfirm
                            title="你确定删除已有的属性吗" width="200px" @confirm="deleteAttr(row.id)">
                            <template #reference>
                                <el-button type="primary" size="small" icon="Delete"></el-button>
                            </template>
                        </el-popconfirm>
                        
                    </template>
                </el-table-column>
            </el-table>
            </div>
            <div v-show="scene==1">
                <el-form :inline="true">
                    <el-form-item label="属性名称">
                        <el-input v-model="attrParams.attrName" placeholder="请输入属性的名称"></el-input>
                    </el-form-item>
                </el-form>
                <el-button @click="addAttrValue" :disabled="attrParams.attrName?false:true" type="primary" size="default" icon="Plus">添加属性值</el-button>                
                <el-button type="primary" size="default" icon="Plus" @click="cancel">取消</el-button>
                <el-table :data="attrParams.attrValueList" border style="margin: 10px 0;">
                    <el-table-column label="序号" width="80px" type="index" align="center"></el-table-column>
                    <el-table-column label="属性值名称">
                        <template #="{row,$index}">
                            <el-input :ref="(vc:any)=>inputArr[$index]=vc" @blur="toLook(row,$index)" v-if="row.flag" v-model="row.valueName" placeholder="请你输入属性值名称"></el-input>
                            <div @click="toEdit(row,$index)" v-else>{{row.valueName}}</div>
                        </template>
                    </el-table-column>
                    <el-table-column label="属性值操作">
                        <template #="{row,$index}">
                          <el-button type="primary" size="small" icon="Delete" @click="attrParams.attrValueList.splice($index,1)"></el-button>
                            
                        </template>
                    </el-table-column>
                </el-table>
                <el-button type="primary" size="default" @click="save" :disabled="attrParams.attrValueList.length>0?false:true">保存</el-button>                
                <el-button type="primary" size="default" @click="cancel">取消</el-button>
            </div>
        </el-card>
    </div>
</template>

<script setup lang="ts">
import { watch,ref,reactive,nextTick,onBeforeUnmount } from 'vue';
import { reqAttr,reqAddOrUpdateAttr,reqRemoveAttr } from '@/api/product/attr'
import {AttrResponseData,Attr,AttrValue} from '@/api/product/attr/type'
import useCategoryStore from '@/store/modules/category';
import { ElMessage } from 'element-plus';
let categoryStore = useCategoryStore()
let attrArr = ref<Attr[]>([])
let scene =ref(0)
let inputArr = ref<any>([])
watch(() => categoryStore.c3Id, () => {
    attrArr.value = []
    if(!categoryStore.c3Id) return
    getAttr()
    
})
const getAttr = async()=>{
    const {c1Id,c2Id,c3Id} = categoryStore
    let result:AttrResponseData = await reqAttr(c1Id,c2Id,c3Id)
    if(result.code==200){
        attrArr.value = result.data
    }
}
const addAttr = ()=>{
    Object.assign(attrParams,{
        attrName:'',
        attrValueList:[],
        categoryId:categoryStore.c3Id,
        categoryLevel:3
    })
    scene.value = 1
}

const updateAttr =(row:Attr)=>{
    scene.value = 1
    Object.assign(attrParams,JSON.parse(JSON.stringify(row)))
}

const cancel = ()=>{
    scene.value = 0
}

let attrParams = reactive<Attr>({
    attrName:'',
    attrValueList:[
    ],
    categoryId:"",
    categoryLevel:3
})
const addAttrValue = ()=>{
    attrParams.attrValueList.push({
        valueName:'',
        flag:true
    })
    nextTick(()=>{
        inputArr.value[attrParams.attrValueList.length-1].focus()
    })
}

const save = async()=>{
  let result = await reqAddOrUpdateAttr(attrParams)
  if(result.code==200){
        scene.value = 0
        ElMessage({
            type:'success',
            message:attrParams.id?'修改成功':'添加成功'
        })
        getAttr()
    }else{
        ElMessage({
            type:'error',
            message:attrParams.id?'修改失败':'添加失败'
        })
    }
  
}
const toLook = (row:AttrValue,$index:number)=>{
    if(row.valueName.trim()==''){
        attrParams.attrValueList.splice($index,1)
        ElMessage({
            type:'error',
            message:'属性值不能为空'
        })
        return;
    }
    let repeat = attrParams.attrValueList.find((item)=>{
        if(item!=row){
            return item.valueName===row.valueName
        }
    })

    if(repeat){
        attrParams.attrValueList.splice($index,1)
        ElMessage({
            type:'error',
            message:'属性值不能重复'
        })
        return 
    }

    row.flag=false
}
const toEdit = (row:AttrValue,$index:number)=>{
    row.flag=true
    nextTick(()=>{
        inputArr.value[$index].focus()
    })
}

const deleteAttr = async (attrId:number)=>{
  let result = await reqRemoveAttr(attrId)
  if(result.code==200){
    ElMessage({
        type:'success',
        message:'删除成功'
    })
    getAttr()
}else{
    ElMessage({
        type:'error',
        message:'删除失败'
    })
}
}
onBeforeUnmount(()=>{
    categoryStore.$reset()
})
</script>

<style scoped></style>